ViewSonic ViewBoard Cast Button for Wireless Presentation - HDMI+USBThe ViewSonic ViewBoard Cast Button is a compact, plug and play screen sharing device designed to transform how you present, collaborate, and engage audiences in classrooms, training rooms, and conference spaces. This HDMI+USB enabled tool streams 1080p content directly from a PC to a ViewBoard interactive display, whether you prefer a wireless setup or a reliable wired connection. With a focus on one click simplicity, presenters can pair the button